KasmVNC/contrib/fltk/04-str2636-fltk-1.3.x-clipboard-win32.patch
2020-09-20 12:16:44 +00:00

100 lines
3.0 KiB
Diff

diff -ur fltk-1.3.0r9110.org/src/Fl.cxx fltk-1.3.0r9110/src/Fl.cxx
--- fltk-1.3.0r9110.org/src/Fl.cxx 2012-06-17 19:47:09.988183253 +0200
+++ fltk-1.3.0r9110/src/Fl.cxx 2012-06-17 19:47:10.127189919 +0200
@@ -1421,6 +1421,7 @@
// hide() destroys the X window, it does not do unmap!
#if defined(WIN32)
+extern void fl_clipboard_notify_untarget(HWND wnd);
extern void fl_update_clipboard(void);
#elif USE_XFT
extern void fl_destroy_xft_draw(Window);
@@ -1471,6 +1472,8 @@
// to destroy the window that owns the selection.
if (GetClipboardOwner()==ip->xid)
fl_update_clipboard();
+ // Make sure we unlink this window from the clipboard chain
+ fl_clipboard_notify_untarget(ip->xid);
// Send a message to myself so that I'll get out of the event loop...
PostMessage(ip->xid, WM_APP, 0, 0);
if (ip->private_dc) fl_release_dc(ip->xid, ip->private_dc);
diff -ur fltk-1.3.0r9110.org/src/Fl_win32.cxx fltk-1.3.0r9110/src/Fl_win32.cxx
--- fltk-1.3.0r9110.org/src/Fl_win32.cxx 2012-06-17 19:47:09.987183205 +0200
+++ fltk-1.3.0r9110/src/Fl_win32.cxx 2012-06-17 19:47:19.069618739 +0200
@@ -646,6 +646,38 @@
}
}
+static HWND clipboard_wnd = 0;
+static HWND next_clipboard_wnd = 0;
+
+static bool initial_clipboard = true;
+
+void fl_clipboard_notify_change() {
+ // No need to do anything here...
+}
+
+void fl_clipboard_notify_target(HWND wnd) {
+ if (clipboard_wnd)
+ return;
+
+ // We get one fake WM_DRAWCLIPBOARD immediately, which we therefore
+ // need to ignore.
+ initial_clipboard = true;
+
+ clipboard_wnd = wnd;
+ next_clipboard_wnd = SetClipboardViewer(wnd);
+}
+
+void fl_clipboard_notify_untarget(HWND wnd) {
+ if (wnd != clipboard_wnd)
+ return;
+
+ ChangeClipboardChain(wnd, next_clipboard_wnd);
+ clipboard_wnd = next_clipboard_wnd = 0;
+
+ if (Fl::first_window())
+ fl_clipboard_notify_target(fl_xid(Fl::first_window()));
+}
+
////////////////////////////////////////////////////////////////
char fl_is_ime = 0;
void fl_get_codepage()
@@ -1327,6 +1359,27 @@
Fl::handle(FL_SCREEN_CONFIGURATION_CHANGED, NULL);
return 0;
+ case WM_CHANGECBCHAIN:
+ if ((hWnd == clipboard_wnd) &&
+ (next_clipboard_wnd == (HWND)wParam)) {
+ next_clipboard_wnd = (HWND)lParam;
+ return 0;
+ }
+ break;
+
+ case WM_DRAWCLIPBOARD:
+ // When the clipboard moves between two FLTK windows,
+ // fl_i_own_selection will temporarily be false as we are
+ // processing this message. Hence the need to use fl_find().
+ if (!initial_clipboard && !fl_find(GetClipboardOwner()))
+ fl_trigger_clipboard_notify(1);
+ initial_clipboard = false;
+
+ if (next_clipboard_wnd)
+ SendMessage(next_clipboard_wnd, WM_DRAWCLIPBOARD, wParam, lParam);
+
+ return 0;
+
default:
if (Fl::handle(0,0)) return 0;
break;
@@ -1685,6 +1738,8 @@
x->next = Fl_X::first;
Fl_X::first = x;
+ fl_clipboard_notify_target(x->xid);
+
x->wait_for_expose = 1;
if (fl_show_iconic) {showit = 0; fl_show_iconic = 0;}
if (showit) {